Thanks! On Tue, Jun 2, 2020 at 10:14 AM Heitor Faria <hei...@bacula.com.br> wrote:
> Hello Crystian, > > Good morning > How are you? > > On it https://blog.bacula.org/whitepapers/CloudBackup.pdf > > In the section: > > *MaximumPartSizeThis directive specifies the maximum size for each > CloudVolume part. Smaller part sizes will reduce restore costs, but may > require asmall additional overhead to handle multiple parts. The maximum > numberof parts permitted in a Cloud Volume is 524,288. The maximum size of > anygiven part is approximately 17.5TB* > > I'm using 256MB, but, my doubt are: > > If there is a recommended size for this? > The smaller the better? > Is 256 MB a good size? > > The parts are the chunk of data that Bacula will be uploading during > backup and downloading during restore. > Object storage transactions are atomic. You can only transfer the entire > object or nothing. > Smaller parts mean less downloaded data (e.g.) if you only need to restore > a small file. They are also easier to transfer, since a faulty transmission > will require retransmiting all the chunk. > However, I personally think very small part size is hard to manage because > it will generate thousands of them. Also, I "guess" it might generate some > performance overhead. > That said, there is no magic number. It depends on your Internet link, > object storage provider cost metrics, usability etc. > > > Thanks > > Regards, > -- > > MSc Heitor Faria > CEO Bacula LATAM > mobile1: + 1 909 655-8971 > mobile2: + 55 61 98268-4220 > [image: linkedin icon] > <https://www.linkedin.com/in/msc-heitor-faria-5ba51b3> > [image: logo] <Http://www.bacula.com.br> > América Latina > bacula.lat | bacula.com.br <http://www.bacula.com.br> > >
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